#53 Handling Exceptions

iteye_19623

于 2008-12-04 21:24:04 发布

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分类专栏： Railscasts 文章标签： Rails ActiveRecord HTML

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本文介绍Rails应用中不同环境下的异常处理方式。开发环境下显示详细的错误信息和堆栈跟踪，而生产环境中仅展示简单的错误消息。此外，还介绍了如何自定义异常处理逻辑。

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When an exception is raised in development you get the full error along with the stack trace. In production, only a simple message is displayed. Learn why this is and how to customize the handling of exceptions.

# application.rb
def local_request?
  false
end

def rescue_action_in_public(exception)
  case exception
  when ActiveRecord::RecordNotFound
    render :file => "#{RAILS_ROOT}/public/404.html", :status => 404
  else
    super
  end
end